$(function(){
	ym_onload();
	$(window).resize(function(){
		ym_onload();
	})
})
 function ym_onload(){
 	var wxl_top=$(".wxl_top").height();
	var wxl_m_com_info=$(".wxl_m_com_info").height();
	var wxl_footer=$(".wxl_footer").height();
	var wxl_win_h=$(window).height();
    var wxl_mid_con=wxl_win_h-wxl_top-wxl_m_com_info-wxl_footer;
    $(".wxl_mid_con").css("height",wxl_mid_con-3+"px");
 }
